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3 years ago

A comic book collector buys a comic book for $120 and sells it for $250. Find the percent change. type your answer...

Mathematics

2 answers:

ankoles [38]3 years ago

6 0

I’m not sure but I think the answer is 48% because 120 divided 250 is 48%

Brrunno [24]3 years ago

3 0

The percent change is 48%

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Answer:

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Step-by-step explanation:

Consider the given function is

$f(x)=\dfrac{2x-1}{2}$

We need to find the average value of the function on the given interval [1,13].

$f(x)=\dfrac{2x}{2}-\dfrac{1}{2}$

$f(x)=x-0.5$

The average value of the function f(x) on [a,b] is

$Average=\dfrac{1}{b-a}\int\limits^b_a {f(x)} \, dx$

Average value of the function on the given interval [1,13] is

$Average=\dfrac{1}{13-1}\int\limits^{13}_{1} {x-0.5} \, dx$

$Average=\dfrac{1}{12}[\dfrac{x^2}{2}-0.5x]^{13}_{1}$

$Average=\dfrac{1}{12}[\dfrac{(13)^2}{2}-0.5(13)-(\dfrac{(1)^2}{2}-0.5(1))]$

$Average=\dfrac{1}{12}[78-0]$

$Average=6.5$

Therefore, the average value of the function on the given interval 6.5.

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A comic book collector buys a comic book for $120 and sells it for $250. Find the percent change. type your answer...​

A comic book collector buys a comic book for $120 and sells it for $250. Find the percent change. type your answer...